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  #1  
Old 04-15-2019, 01:08 AM
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Minor leak at lower PS Hose: can I cut 1/2" off and re-attach?

Coming from E39 1998 528i...

In the past, the PS return hose UNDERNEATH the PS reservoir leaked and I cut 1/2" off and re-attach it with new clamp. It worked for 10 years.

Another question: if it leaks at the bottom of the PS PUMP, can you do the same thing, i.e., cut 1/2" off and re-attach with new clamp?

This is the leak I am referring to...


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  #2  
Old 04-15-2019, 08:23 AM
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Yes you can.
The hose is cheap and an easy install so why would you bother with a 30/120 day fix when you can resolve the issue once for another 50K?

Check your Rad side and as both get hard and start leaking at 15 years/80K
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Old 04-15-2019, 12:56 PM
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If it's not the return hose, but the high-pressure hose, you probably can't cut and reattach.
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Old 04-15-2019, 02:12 PM
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That is a return hose, the high pressure is a banjo bolt.

The amount of work required you are better just getting a new hose. All the fluid from the reservoir will drain out when you remove it.

So might as well get a new reservoir as well as the filter is built in.
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Old 04-15-2019, 09:45 PM
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It is a temp fix.

I can clamp gently above it to do the work.
Will report back.
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Old 04-15-2019, 09:54 PM
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I think it is the hose supplying fluid to the PS Pump.
I drew a diagram as I understand it.

The leak has been there for 5 years (bought the car in 2014).

Now I know why in REALLY COLD days (like -20C etc.), the PS squeak when turning right. This is because when COLD, the hose shrinks a bit more, air is sucked into the PS Pump.

My 2007 Honda Odyssey had similar issue but it was a defective O-ring, exactly where the hose enters the PS Pump itself.


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Old 04-16-2019, 12:48 AM
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It looks like your system is ATF. The CH 11 fluid was designed for cold weather. You may want to research it and replace after you get your leaks sorted.
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Old 04-16-2019, 08:19 AM
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My 2006 X5 uses Pentosin CHF fluid.
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Old 04-16-2019, 10:30 AM
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The leak in the OP looks red which is ATF. CHF is green in color. Which is why I thought your system was ATF filled.
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  #10  
Old 04-16-2019, 10:34 AM
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I took a random photo from the web.
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